[Bug]: Python: await page.route() hangs indefinitely on macOS with pytest

[willthefirst]

Version

1.51.0

Steps to reproduce

Code Snippet

# Minimal Reproducible Example (tests/test_minimal_playwright_route.py)
# Needs: pytest, pytest-asyncio, pytest-playwright
import pytest
from playwright.async_api import Page
import asyncio

# Using pytest-playwright page fixture

@pytest.mark.asyncio
async def test_minimal_route_hang(page: Page):
    print("LOG: Minimal Test (pytest-playwright) - START")

    print("LOG: Minimal Test (pytest-playwright) - Setting up route interception...")
    try:
        # THIS LINE HANGS INDEFINITELY
        await page.route("**/*",
            lambda route: print(f"LOG: Minimal Test (pytest-playwright) - Intercepted {route.request.url}")
        )
        print("LOG: Minimal Test (pytest-playwright) - Route interception setup COMPLETE.")
    except Exception as e:
        print(f"LOG: Minimal Test (pytest-playwright) - ERROR during page.route setup: {e}")
        pytest.fail(f"page.route setup failed: {e}")

    # --- Code below this line is never reached ---
    print("LOG: Minimal Test (pytest-playwright) - Navigating to example.com...")
    try:
        await page.goto("http://example.com", timeout=10000)
        print("LOG: Minimal Test (pytest-playwright) - Navigation COMPLETE.")
    except Exception as e:
        print(f"LOG: Minimal Test (pytest-playwright) - ERROR during navigation: {e}")
        pytest.fail(f"Navigation failed: {e}")

    await page.wait_for_timeout(2000)
    print("LOG: Minimal Test (pytest-playwright) - END")

# pytest.ini
[pytest]
pythonpath = .
asyncio_mode = strict
asyncio_default_test_loop_scope = session
addopts = -v --asyncio-mode=strict
filterwarnings =
    ignore::DeprecationWarning:starlette
    ignore::PendingDeprecationWarning:starlette

Libraries Used:

• pytest: 8.3.5
• pytest-asyncio: 0.26.0
• pytest-playwright: 0.7.0

Steps to Reproduce:

1. Set up a Python 3.11 environment on macOS.
2. Install the required libraries: pip install "pytest==8.3.5" "pytest-asyncio==0.26.0" "pytest-playwright==0.7.0" "playwright==1.51.0"
3. Run playwright install.
4. Save the minimal Python code above as tests/test_minimal_playwright_route.py.
5. Save the pytest.ini content in the project root.
6. Run the test from the project root using the command: pytest -v -s tests/test_minimal_playwright_route.py

Expected behavior

Expected Result:

The test execution should print the following logs (or similar) and eventually complete or fail during navigation/timeout:

LOG: Minimal Test (pytest-playwright) - START
LOG: Minimal Test (pytest-playwright) - Setting up route interception...
LOG: Minimal Test (pytest-playwright) - Route interception setup COMPLETE.
LOG: Minimal Test (pytest-playwright) - Navigating to example.com...

Actual behavior

Actual Result:

The test execution prints the following and then hangs indefinitely. It never proceeds past the await page.route(...) call and must be manually interrupted (Ctrl+C).

LOG: Minimal Test (pytest-playwright) - START
LOG: Minimal Test (pytest-playwright) - Setting up route interception...

Additional context

No response

Environment

System:
    OS: macOS 15.3.2
    CPU: (8) arm64 Apple M2
    Memory: 374.73 MB / 24.00 GB
  Binaries:
    Node: 18.18.1 - ~/.nvm/versions/node/v18.18.1/bin/node
    npm: 10.2.4 - ~/.nvm/versions/node/v18.18.1/bin/npm
    pnpm: 9.5.0 - ~/.nvm/versions/node/v18.18.1/bin/pnpm
    bun: 1.0.6 - /opt/homebrew/bin/bun
  IDEs:
    VSCode: 1.99.2 - /usr/local/bin/code
  Languages:
    Bash: 3.2.57 - /bin/bash

[mxschmitt]

I was not able to reproduce that it hangs indefinitely. For me it was throwing after 10s. Are you intentionally not calling continue/fulfill etc. in the route handler?